Any Data for 2mg Finasteride Benefits?

I understand that a 1mg dose of Propecia is recommended. What I want to know, however, is how much more hair grew at a 2mg dose vis-a-vis the 1mg dose — 10% more? 15% more? I know these data exist. So, what incremental improvement might there be with a 2mg dose?

While it’s quite possible that the data for 2mg finasteride hair loss treatment benefits exists, I don’t have it, I don’t recall seeing it, and I’m not sure if it was ever made available to the public.

I do know that there were studies that looked at high dose and low dose finasteride (prior to Propecia becoming available) for treating hair loss. More is not better and I am not aware of a 2mg study showing any additional benefit. The stories that I do hear are anecdotal.